ClassID:

142396

F03D3/02 - CPC Classification

Classification description:

Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors

Recent Application in this class:
#1
20260085658
2026-03-26

PLENUM RESIDENT WIND TURBINE SUSTAINABLE ENERGY GENERATING SYSTEM

#2
20260063104
2026-03-05

WIND POWER GENERATION APPARATUS

#3
20250382941
2025-12-18

TOROIDAL, MODULAR, AMPLIFIED WIND POWER GENERATION SYSTEM UTILIZING BERNOULLI PASSIVE WIND AMPLIFICATION SURFACES AND COUPLED-VORTEX COMPONENT POSITIONING OF MULTIPLE ADJUSTABLE STANDALONE VAWT TURBINES AND VANES ON A PASSIVELY YAWABLE TRACK

#4
20250361851
2025-11-27

PYRAMID WIND TURBINE

#5
20250347265
2025-11-13

MULTIPLE BLADE WIND TURBINE

#6
20250347263
2025-11-13

WIND TURBINE AND WIND POWER PLANT

#7
20250101949
2025-03-27

PLENUM RESIDENT WIND TURBINE SUSTAINABLE ENERGY GENERATING SYSTEM

#8
20250092856
2025-03-20

WIND TURBINE SYSTEM

#9
20240418150
2024-12-19

VORTEX STATION

#10
20240356480
2024-10-24

ENERGY HARVESTING SYSTEM

#11
20240287963
2024-08-29

Linear network of wind turbine blade arrays having hub frame and blade formation with segments

#12
20240280078
2024-08-22

Drag-Based Wind Turbine Device

#13
20240263612
2024-08-08

ROTOR CONFIGURATON

#14
20240240611
2024-07-18

Vertical axle windmill torque ring

#15
20240209831
2024-06-27

ROTOR FOR A WIND POWER INSTALLATION AND METHOD FOR OPERATING A WIND POWER INSTALLATION

#16
20240159221
2024-05-16

WIND POWERED GENERATOR

#17
20240141866
2024-05-02

Cross-flow wind turbine with twin blades and inclined rotation axes

#18
20240077060
2024-03-07

Plenum resident wind turbine sustainable energy generating system

#19
20240060472
2024-02-22

Vortex station

#20
20240003330
2024-01-04

Vertical-shaft wind turbine

#21
20230287864
2023-09-14

Universal propeller, operating method and favoured use

#22
20230243333
2023-08-03

Multistage Vertical Axis Wind Turbine

#23
20230243332
2023-08-03

VERTICAL SPIRAL WIND TURBINE

#24
20230204012
2023-06-29

Plenum resident wind turbine sustainable energy generating system

#25
20230151795
2023-05-18

Turbine wall apparatus/system and method for generating electrical power

#26
20230141721
2023-05-11

Turbine Wall Apparatus/System and Method for Generating Electrical Power

#27
20230069289
2023-03-02

Multistage vertical axis wind turbine

#28
20230054090
2023-02-23

Drag cum lift based wind turbine system having adjustable blades

#29
20230033826
2023-02-02

Variable Tilting Blade Twin Turbine Windmill

#30
20220403817
2022-12-22

BIFURCATING WIND DIVERTER FOR VERTICAL-AXIS TURBINE GENERATOR

#31
20220381219
2022-12-01

Box-type wind power generation device and power generation device set

#32
20220213871
2022-07-07

DUCTED WIND TURBINE AND SUPPORT PLATFORM

#33
20220106936
2022-04-07

WIND POWER GENERATION DEVICE

#34
20220074389
2022-03-10

Plenum resident wind turbine sustainable energy generating system

#35
20220003205
2022-01-06

Sail device

#36
20220003204
2022-01-06

TURBINE SYSTEM WITH LIFT-PRODUCING BLADES

#37
20210388812
2021-12-16

Efficient wind energy convertor without gearbox or multi-pole generator

#38
20210301784
2021-09-30

AN INTEGRATED AND SYNERGISTIC MULTI-TURBINE, MULTI-VANE ARRAY FOR A MODULAR, AMPLIFIED WIND POWER GENERATION SYSTEM

#39
20210285417
2021-09-16

Vertical axis windmill with shutters and blinds

#40
20210270230
2021-09-02

Toroidal lift force engine

#41
20210239088
2021-08-05

Wind turbine

#42
20210207577
2021-07-08

Scalable wind power station

#43
20210199091
2021-07-01

WIND TURBINE ELECTRIC GENERATION, HEAT TRANSFER AND HEAT STORAGE SYSTEMS AND METHODS

#44
20210180567
2021-06-17

Apparatus for wind power generation

#45
20210148330
2021-05-20

A DISMOUNTABLE WIND POWER PLANT WITH ROTATION AXIS SUBSTANTIALLY PERPENDICULAR TO THE WIND DIRECTION AND A METHOD FOR MOUNTING THE WIND POWER PLANT

#46
20210123412
2021-04-29

WIND-BASED ELECTRICAL POWER GENERATION SYSTEM

#47
20210115894
2021-04-22

TOWER-MOUNTED WIND POWER SYSTEM

#48
20210062788
2021-03-04

Ducted wind turbine and support platform

#49
20210047994
2021-02-18

Wind power generation device

#50
20200408191
2020-12-31

Vertical axis turbine

#51
20200355159
2020-11-12

Vertical axis wind turbine apparatus and system

#52
20200355158
2020-11-12

METHODS AND APPARATUS FOR GENERATING ELECTRICITY FROM WIND POWER

#53
20200256317
2020-08-13

Wind power installation

#54
20200217297
2020-07-09

Integrated vertical axis wind power generation system

#55
20200200144
2020-06-25

Multistory power generation system

#56
20200191119
2020-06-18

Orthogonal turbine having a speed adjusting member

#57
20200191115
2020-06-18

Turbine system with lift-producing blades

#58
20200191114
2020-06-18

SYSTEMS, APPARATUSES AND DEVICES FOR HARVESTING ENERGY FROM WIND

#59
20200173419
2020-06-04

Wind turbine apparatuses

#60
20200132043
2020-04-30

Multi-rotor, multi-axis wind turbine

#61
20190390649
2019-12-26

WIND TURBINE

#62
20190390648
2019-12-26

WIND TURBINE WITH A VERTICAL ROTATION AXIS

#63
20190360465
2019-11-28

Vertical axis wind turbine apparatus and system

#64
20190309729
2019-10-10

Vortex station

#65
20190293051
2019-09-26

Vertical axis wind turbine rotor

#66
20190285049
2019-09-19

Wind turbine system

#67
20190277249
2019-09-12

VERTICAL AXIS WIND TURBINE SYSTEM WITH ONE OR MORE INDEPENDENT ELECTRIC POWER GENERATION UNITS

#68
20190264652
2019-08-29

Twin M-VAWT

#69
20190257287
2019-08-22

TURBINE WITH DYNAMICALLY ADAPTABLE SAVONIUS BLADES

#70
20190257286
2019-08-22

VERTICAL AXIS WIND TURBINE WITH ITS BLADE SUPPORT SHIELDED

#71
20190186461
2019-06-20

Vertical axis wind turbine and method for operating such a turbine

#72
20190128241
2019-05-02

Floating wind turbine having twin vertical-axis turbines with improved efficiency

#73
20190120206
2019-04-25

Multi axes turntable, wind turbine, and tower fan

#74
20190085819
2019-03-21

Multifunctional wind turbine / hydro turbine and their assembly for multiple applications and uses

#75
20190078554
2019-03-14

Vertical axis windmill with shutters and blinds

#76
20190063401
2019-02-28

VARIABLE TILTING BLADE TWIN TURBINE WIND MILL

#77
20180340513
2018-11-29

Apparatus for wind energy production and air purification

#78
20180226860
2018-08-09

Energy Harvesting Airport

#79
20180171971
2018-06-21

Wind turbine with folding blades

#80
20180163567
2018-06-14

Multi-stage radial flow turbine

#81
20180156198
2018-06-07

Wind generator with energy storage system

#82
20180149135
2018-05-31

Counter-rotating vertical axis wind turbine with deflector and vortex generators

#83
20180135600
2018-05-17

Turbine energy device

#84
20180100484
2018-04-12

Wind turbine with open back blade

#85
20180094618
2018-04-05

Any axis turbine pinwheel and method of construction

#86
20180045178
2018-02-15

Air Capture Turbine

#87
20180030957
2018-02-01

Horizontal and vertical axis wind generator

#88
20180026574
2018-01-25

Modular multi-axial rotor

#89
20180010582
2018-01-11

Vertical axis wind turbine system with one or more independent electric power generation units

#90
20180010574
2018-01-11

Wind turbine system

#91
20170342963
2017-11-30

Power generation architecture using environmental fluid flow

#92
20170321657
2017-11-09

POWER GENERATION SYSTEM UTILIZING TURBINE ARRAYS

#93
20170306925
2017-10-26

THREE-VANE DOUBLE ROTOR FOR VERTICAL AXIS TURBINE

#94
20170298907
2017-10-19

Wind turbine panel

#95
20170298902
2017-10-19

Savonius wind turbines

#96
20170260965
2017-09-14

Turbine with dynamically adaptable Savonius blades

#97
20170248119
2017-08-31

Vertical axis wind turbine

#98
20170211544
2017-07-27

Flexible Wind Turbine Apparatus

#99
20170138345
2017-05-18

Vertical axis wind turbine and method for operating such a turbine

#100
20170130696
2017-05-11

Vertical axis wind turbine structure

#101
20170117783
2017-04-27

Fluid driven electric generator

#102
20170082091
2017-03-23

Wind turbine

#103
20170045034
2017-02-16

DEVICE AND SYSTEM FOR WIND POWER GENERATION

#104
20160377053
2016-12-29

Vertical axis wind turbine

#105
20160333851
2016-11-17

WIND POWER GENERATING APPARATUS

#106
20160327022
2016-11-10

Crossflow axes rotary mechanical devices with dynamic increased swept area

#107
20160305400
2016-10-20

MULTISEGMENT VERTICAL AXIS WIND TURBINE

#108
20160208776
2016-07-21

Wind power generation tower

#109
20160208774
2016-07-21

Wind turbine system

#110
20160195065
2016-07-07

Vertical axis wind turbine

#111
20160186720
2016-06-30

Wind power generation tower provided with gyromill type wind turbine

#112
20160123300
2016-05-05

Vertical axis water/wind turbine motor using flight feather opening/closing wing system

#113
20160123299
2016-05-05

Dual rotor wind turbine generator set

#114
20160108887
2016-04-21

Horizontal and vertical axis wind generator

#115
20160090964
2016-03-31

Wind turbine

#116
20160076520
2016-03-17

Energy conversion device driven by wind power

#117
20160061187
2016-03-03

Vertical axis wind turbine system with one or more independent electric power generation units

#118
20160025067
2016-01-28

Vertial axis wind/solar turbine

#119
20160010627
2016-01-14

Auto-gyro rotor flying electric generator (FEG) with wing lift augmentation

#120
20150377208
2015-12-31

Redundant pressure control

#121
20150292488
2015-10-15

Wind turbine installation having a tower console

#122
20150292480
2015-10-15

Twin directional turbine / alternator / generator for wind power generation

#123
20150240786
2015-08-27

Power generation architecture using environmental fluid flow

#124
20150233353
2015-08-20

VERTICAL AXIS WIND TURBINE

#125
20150233346
2015-08-20

Vertical axis wind turbine

#126
20150211483
2015-07-30

Wind turbine and tower system

#127
20150211475
2015-07-30

Power generating assembly

#128
20150204305
2015-07-23

Vertical-axis wind turbine with flettner rotors

#129
20150184637
2015-07-02

Methods and systems for managing power generation and temperature control of an aerial vehicle operating in crosswind-flight mode

#130
20150184633
2015-07-02

Methods and systems for managing power generation and temperature control of an aerial vehicle operating in crosswind-flight mode

#131
20150184629
2015-07-02

Airfoil for a flying wind turbine

#132
20150167635
2015-06-18

WIND POWER GENERATION UNIT AND WIND POWER GENERATION SYSTEM OF VERTICALLY STACKED TYPE

#133
20150152841
2015-06-04

Modular multi-axial rotor

#134
20150152840
2015-06-04

Dual-Turbine Wind Power Station Placed on a Vertical Axis

#135
20150118050
2015-04-30

Wind turbine, its use and a vane for use in the turbine

#136
20150069759
2015-03-12

Vertical axis wind turbine system with one or more independent electric power generation units

#137
20150021922
2015-01-22

Modular alternative energy unit

#138
20140367972
2014-12-18

Wind energy electricity generator for low wind velocity

#139
20140356130
2014-12-04

Enclosed vertical axis fluid rotor

#140
20140334912
2014-11-13

ACTIVE WINDMILL WITH THE AXIS OF ROTATION TRANSVERSE TO THE DIRECTION OF THE WIND

#141
20140327244
2014-11-06

System for energy production from renewable sources

#142
20140322014
2014-10-30

VERTICAL AXIS WIND TURBINE

#143
20140319842
2014-10-30

Device for Recovering Energy from a Moving Fluid

#144
20140294588
2014-10-02

Vertical axis wind turbine using helical blades with serrated edges

#145
20140271167
2014-09-18

Multi-stage radial flow turbine

#146
20140255166
2014-09-11

Energy-storing and power-generating system and method for a vertical-axis wind generator

#147
20140199160
2014-07-17

WIND TURBINE WITH TWO SETS OF BLADES AND METHOD OF OPERATION THEREOF

#148
20140159373
2014-06-12

Compact wind and water turbine

#149
20140125065
2014-05-08

Pillar type wind power generator

#150
20140112783
2014-04-24

HORIZONTAL AXIS MULTIPLE STAGES WIND TURBINE

#151
20140105752
2014-04-17

DRUM POUCH WIND TURBINE

#152
20140105743
2014-04-17

Conical fan assembly for use in a wind turbine for the generation of power

#153
20140099203
2014-04-10

MECHANICAL AND OTHER IMPROVEMENTS OF A VERTICAL AXIS WIND TURBINE

#154
20140099186
2014-04-10

Wind engine

#155
20140083091
2014-03-27

Assembly of air and pneumatic devices

#156
20140083027
2014-03-27

Wind energy turbine shell station

#157
20140050586
2014-02-20

Omni-Directional Wind Power Harnessing Device

#158
20130341933
2013-12-26

System for generating electrical energy from low speed wind energy by means of two systems of drive blades

#159
20130328320
2013-12-12

Wind-powered rotor and energy generation method using said rotor

#160
20130323056
2013-12-05

Vertical axis wind turbine blade

#161
20130313834
2013-11-28

Wind-collecting type wind power generating apparatus installed on roadside

#162
20130307276
2013-11-21

Wind power generating apparatus having a wind guide

#163
20130294886
2013-11-07

Prime mover

#164
20130287570
2013-10-31

Self-starting savonius wind turbine

#165
20130280058
2013-10-24

Wind machine with aerodynamic elements to concentrate and accelerate an Aeolian flow entering from outside

#166
20130280034
2013-10-24

Wind direction adjustable blade type vertical axis wind turbine

#167
20130272894
2013-10-17

Archimedean modular / multi-axis rotor (AMR)

#168
20130259696
2013-10-03

VERTICAL AXIS WIND TURBINE AIRFOIL

#169
20130251526
2013-09-26

System and Method for Generating Electricity from Aerodynamic Drag

#170
20130236306
2013-09-12

Toroidal augmented wind power generation system using a modified and integrated vertical axis wind turbine rotor and generator assembly

#171
20130195636
2013-08-01

WIND TURBINE

#172
20130187389
2013-07-25

METHOD FOR PREDICTIVE MONITORING OF SWITCH CONTACTORS AND SYSTEM THEREFOR

#173
20130177426
2013-07-11

Vertical-axis wind turbine

#174
20130149144
2013-06-13

WINDMILL

#175
20130146372
2013-06-13

Wind generator system for electric vehicles

#176
20130127393
2013-05-23

Wind operated electricity generating system

#177
20130094967
2013-04-18

VERTICAL AXIS WIND TURBINE SYSTEM

#178
20130088012
2013-04-11

WIND ENERGY TURBINE SHELL STATION (WETSS)

#179
20130056990
2013-03-07

Modular Wind Turbine

#180
20130039761
2013-02-14

Vertical wind turbine with articulated blades

#181
20130028745
2013-01-31

System and Method for Generating Electrical Power Using an Improved Wind Turbine Blade

#182
20130028722
2013-01-31

System and Method for Improving Turbine Efficiency using a Frame and Shroud System

#183
20120328438
2012-12-27

WIND TURBINE GENERATOR AND MOTOR

#184
20120326447
2012-12-27

Wind turbine system

#185
20120299527
2012-11-29

Power generation device

#186
20120267895
2012-10-25

POWER GENERATOR

#187
20120256423
2012-10-11

DEVICE OF FLOATING WIND TURBINE CAPABLE OF COUNTERBALANCING TORQUES THEREIN

#188
20120242091
2012-09-27

ECCENTRIC DUAL ROTOR ASSEMBLY FOR WIND POWER GENERATION

#189
20120235418
2012-09-20

Wind turbine apparatus

#190
20120211993
2012-08-23

Converting wind energy to electrical energy

#191
20120207600
2012-08-16

FLOATING VERTICAL AXIS WIND TURBINE MODULE SYSTEM AND METHOD

#192
20120201676
2012-08-09

Wind energy systems and methods of use

#193
20120201666
2012-08-09

Staggered multi-level vertical axis wind turbine

#194
20120187685
2012-07-26

AIR DRIVEN ELECTRIC GENERATOR FOR CHARGING A BATTERY

#195
20120161448
2012-06-28

Multiple wind turbine power generation system with dynamic orientation mechanism and airflow optimization

#196
20120161447
2012-06-28

Wind power turbine combining a cross-flow rotor and a magnus rotor

#197
20120148403
2012-06-14

COUNTER-ROTATING VERTICAL AXIS WIND TURBINE ASSEMBLY

#198
20120141279
2012-06-07

DRAG-TYPE WIND TURBINE FOR WIND-DRIVEN ELECTRICITY GENERATORS AND WIND-DRIVEN ELECTRICITY GENERATORS USING DRAG-TYPE WIND TURBINE

#199
20120138372
2012-06-07

Motor vehicle

#200
20120134824
2012-05-31

Lightweight, Collapsible Axial Wind Generator

#201
20120124985
2012-05-24

COMPRESSED-AIR WIND TURBINE GENERATOR SYSTEM HAVING A SUBSTANTIALLY SQUARE, MOVABLE BODY

#202
20120119504
2012-05-17

WIND ENERGY INSTALLATION

#203
20120111531
2012-05-10

Pressure reducing gas storage device, air-jet system, and motor vehicle

#204
20120104759
2012-05-03

Multi directional augmenter and diffuser

#205
20120074706
2012-03-29

Mutual-Rotating Power System

#206
20120074705
2012-03-29

COUNTER ROTATING WIND TURBINE POWER GENERATION

#207
20120074701
2012-03-29

RIDGE CAP WIND GENERATION SYSTEM

#208
20120070293
2012-03-22

Wind turbine apparatus, wind turbine system and methods of making and using the same

#209
20120049525
2012-03-01

System for a vehicle to capture energy from environmental air movement

#210
20120043762
2012-02-23

VARIABLE WINDMILL WING WIND POWER GENERATOR HAVING POWER GENERATION EFFICIENCY INCREASING MEANS

#211
20120043761
2012-02-23

APPARATUS AND METHOD TO INCREASE WIND VELOCITY IN WIND TURBINE ENERGY GENERATION

#212
20120039712
2012-02-16

VERTICAL AXIS WIND TURBINE DEVICE

#213
20120034069
2012-02-09

Transverse axis turbine with controllable display

#214
20120032447
2012-02-09

COMBINED WING AND TURBINE DEVICE FOR IMPROVED UTILIZATION OF FLUID FLOW ENERGY

#215
20120020788
2012-01-26

WIND ENERGY SYSTEM

#216
20120014799
2012-01-19

VERTICAL AXIS WIND TURBINES

#217
20110318161
2011-12-29

APPARATUS, SYSTEM AND METHOD FOR A WIND TURBINE

#218
20110309786
2011-12-22

Green electric vehicle utilizing multiple sources of energy

#219
20110304143
2011-12-15

WIND GENERATOR FOR INSTALLATION ON A HOUSE

#220
20110298214
2011-12-08

Vertical Axis Fluid Turbine

#221
20110272948
2011-11-10

Wind driven power generator

#222
20110266802
2011-11-03

Tunnel power turbine system to generate potential energy from waste kinetic energy

#223
20110236207
2011-09-29

Rotor Platform of Aerodynamic Force and Method of Aerodynamic Force Generation

#224
20110229304
2011-09-22

Vertical axis wind turbine system

#225
20110206526
2011-08-25

VERTICAL-AXIS WIND TURBINE HAVING LOGARITHMIC CURVED AIRFOILS

#226
20110181047
2011-07-28

EOLIC CONVERTER TOWER

#227
20110173853
2011-07-21

BILLBOARD SYSTEM AND METHODS OF USE THEREOF

#228
20110148116
2011-06-23

Antenna mounted wind power generator

#229
20110142641
2011-06-16

Enclosed vertical axis fluid rotor

#230
20110135443
2011-06-09

System and method for collecting, augmenting and converting wind power

#231
20110133480
2011-06-09

Converting wind energy to electrical energy

#232
20110133462
2011-06-09

Converting wind energy to electrical energy

#233
20110133460
2011-06-09

Control system and method for wind power generation plant

#234
20110097200
2011-04-28

Wind power turbine

#235
20110095531
2011-04-28

Wind generator with energy enhancer element for providing energy at no wind and low wind conditions

#236
20110085910
2011-04-14

Rotor-type Super Windmill and Method of Increasing Kinetic Energy of Air Flow

#237
20110081243
2011-04-07

Helical airfoil wind turbines

#238
20110070087
2011-03-24

Wind turbine

#239
20110049905
2011-03-03

Generation of electric energy using cable-supported windmills

#240
20110049894
2011-03-03

Electricity Generating Assembly

#241
20110037271
2011-02-17

WIND TURBINE SYSTEM AND MODULAR WIND TURBINE UNIT THEREFOR

#242
20110033291
2011-02-10

ENERGY TRANSFER SYSTEM

#243
20110033288
2011-02-10

Omnidirectional vertical-axis wind turbine

#244
20110031756
2011-02-10

SELF-STARTING DARRIEUS WIND TURBINE

#245
20110027084
2011-02-03

NOVEL TURBINE AND BLADES

#246
20110027062
2011-02-03

SYSTEM AND METHOD FOR IMPROVED WIND CAPTURE

#247
20110025070
2011-02-03

Utility grid vertical axis wind turbine system

#248
20110006543
2011-01-13

Wind power system

#249
20110006542
2011-01-13

Helix turbine system and energy production means

#250
20110006540
2011-01-13

Dual-mode roadway turbines for energy generation from artificial pulsed vehicle wind and continuous ambient wind

#251
20110006524
2011-01-13

WIND TURBINE WITH STABLE POWER OUTPUT

#252
20100327598
2010-12-30

Wind turbine

#253
20100296913
2010-11-25

WIND POWER GENERATING SYSTEM WITH VERTICAL AXIS JET WHEEL TURBINE

#254
20100283254
2010-11-11

Wind power plant

#255
20100276936
2010-11-04

Air and fluid energy recovery device

#256
20100260604
2010-10-14

Two-dimensional array of turbines

#257
20100257795
2010-10-14

Building-integrated system for capturing and harvesting the energy from environmental wind

#258
20100253084
2010-10-07

Vertical-axis windpower fan unit and module and power generating system thereof

#259
20100237616
2010-09-23

Multi Directional Augmentor and Diffuser

#260
20100232960
2010-09-16

VARIABLE GEOMETRY TURBINE

#261
20100230974
2010-09-16

Low wind, vertical axis, dual stage, wind turbine power generator

#262
20100230972
2010-09-16

Vertical axis wind turbine system

#263
20100219635
2010-09-02

INTEGRATED WIND ENERGY HARVESTING SYSTEM AND METHOD

#264
20100213722
2010-08-26

Wind turbine generators

#265
20100213720
2010-08-26

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LARGE SIZED SAFE WINDMILL WITH HIGH EFFICIENCY

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Skyscraper with integrated wind turbines

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Retractable wind turbines

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Wind manipulator and turbine

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SYSTEMS AND METHODS FOR GENERATING ENERGY USING WIND POWER

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Column structure with protected turbine

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Motor vehicles

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Motor Vehicles

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Motor vehicles

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Motor Vehicles

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Dual rotor wind turbine

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Motor Vehicles

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Vertical axis wind turbine

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Hyper-surface wind generator

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WIND TURBINE

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Wind power twin generator include multiple system

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Tether handling for airborne electricity generators

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Cannon-shaped wind turbines for electric vehicles

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Windmill tower

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Electric power tunnel apparatus

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Andrews turbine

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Multiple Turbine Energy Collector and System